Wall-paper cutter.



PATENTED JUNE 6, 1905.

.Jomirsoh.` WALL PAPER GUTTER.

APPLICATION FILED 00T. 9, 1903.

\\\ \\x TIN@ rPatented. June 6', 1905.

PATENT OFFICE.

ALBERT JOHNSON, OF CINCINNATI, OHIO.'

WALL-PAPER CUTTER.

SPECIFICATION forming part of Letters Patent No. 791,793, dated J une 6,1905.

Application filed October 9,- 1903. Serial No. 176,392.

To all whom it may concern:

ments in Wall-Paper Cutters, of which the following is a clear, full,and eXact descrip-V tion, reference being had to the accompanyingdrawings, forming part of this specication.

My invention consists of a certain novel construction and arrangement ofparts to be hereinafter particularly pointed out and claimed, whereby arevolving circular knife lmay be used as the cutter in connection with astraightedge or rulerfor indicating and fixing the proper line on thepaper to be cut.

In the drawings, Figure l is a side elevation of my' improved cutterready for use, showing a portion only of the ruler. Fig. 2 is a similarside elevation, showing the position of the wheel in use. Fig. 3 is acentral cross-section on the lines 3 3 of Fig. 2.

A is a ruler or straight-edge of any desired length and thickness forruling the necessary lines on the paper to be cut. This ruler carries atongue B,- running parallel to anda short distance from the cutting edgeof the ruler.

O is a carriage provided with flanges am to embrace the sides of thetongue B on the` ruler.

D is a casing within which is mounted on the spindle'E acircularcutting-knife F. This cutting-knife is provided with ball-bearing boxeswithin which are mounted the balls c c to form a ball-bearing journalfor the knife.

d is a Washer to keep the cutting-knife at proper distance from the sideof the casing, and e is a nut for holding the spindle and thecutting-knife in the casing. By removing the nut and spindle or bolt thecutting-knife can be easily removed for sharpening. This casing D ismounted on the carriage O by the pins ff at the four corners of thecarriage, which pins pass through openings loosely in ears on thecasing.

g g are spiral springs surrounding the pins ff and bearing between thecarriage and the ears on the casing, so as normally to maintain thecasing with the cutting-knife a short distance above the surface of thecutting-table H. u When the straight-edge has been placed in the properposition on the paper to be out, the operator bears down on the casing,at the same time pushing the cutter forward, which rotates the knife andbrings its cutting edge on the paper to sever same on the desired line.The flanges a; a and the cutting-knifeFare constructed 'such a distanceapart that when the flanges embrace the tongue B on the ruler thecutting edge of the knife will closely hug the edge of the ruler.

The cutting-knife when not in use is normally held above the surface ofthe table in order that the ruler may be'readily moved into any desiredposition without removing the cutter 'from its place on the ruler.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is- In a Wall-paper cutter, the combination, With aruler having a guiding-flange, of a carriage riding on said flange, arevolving circular cutting-blade, a casing in which saidknife isjournaled, pins on the corners of said carriage, with perforations onthe casing through which the pins loosely pass, and coiled springs onthe pins bearing between the casing and the carriage, Wherebyythecutting-knife is raised from the paper to be cut until depressed bytheoperator, substantially as described.

ALBERT JOHNSON.

